•
•
•
CHAPTER
2:
ABOUT DISKS AND
PROGRAMS
Corr,puters
can
stere inforrnac
or
in
1'·,vo
ways:
• Ternporari
y,
In
rTl&rTlory
(tL.rnilg
:le
compute'
off erases
mcmo
c
'y',1
•
Permarentl/
in
a
sto,cage
oevice
Disks die
Ole
of
t.he
l;est s:orage devices available because at
~he
way
11'9
sysle'n
elm orDani?p
2nd
index il1form9-,on
on
IrelD
Types of Disks
Yau
e
Bui
1-1'1
HaeQ
Dis"
System
call
LSO
two :ypes
of
disks
• F
opay
dis..;ettes _ Your
3Jilt-ir
Hard
Jok
System has one
buil:-in
fbopy
drive
Drive
\)1
ald
other periphe'al floopy
diske:te
d'ves
C81'
bp.
added
•
Hard
disks _
vour
Built-in
Ha'd
Disk System
ras
onc
b'Ji I-in
rard
disK dr:ve (Drive t.) and
anc:'ler
oeripherai
secondary
t'arcl disk drive can oe Boded (Driv'9 5)
Floppy Diskettes
F or)oy
dis<elle~
are corwer'ienl and inexpensive The
lerrr
"floppy'
"lears
~1e
disKette
Dercc
if misha1dled Care
oj
floppy
dlskeJes
'IS
dlsc'Jssec Idler
'''I
Ih'lS
r"lam,ClI,
I
~ere
are
lwo
IYlles
01
Iloopy disketles
YOI,
oa1 use
will'
y'llJr
BLilt-ir Hard D
sk
S\'stom'
• S'ngle sided d'skettes
can
store aroJrld 500 000 bytes
01
if'le'rllatillrl,
• Ocub,:e-sidecf diske!les
can
s~ore
lwice as
mUCl1
inforrllalior
beCfl,JSe 1hey use both sides
13
To Next Page
Loading...
